Welcome to the
Armoury.

The next CIT, rebuilt around the documents themselves. Drop the PDFs and spreadsheets in once and work from them: the statements are read off the page, every figure keeps a reference back to the file and column it came from, and the whole computation is one scrolling workbook rather than a set of tabs. Beta; access is by request from the sign-in page.

• Turns the client’s PDFs and spreadsheets, as they are, into the full Singapore tax computation — no retyping
• Keeps every figure tied to the file and column it came from, so the review is against the documents, not the arithmetic
• Ends in a client-ready workbook with the Form C / C-S filing summary, the client queries and an internal review copy

The personal return prepared the way a corporate file is: enter the IR8A line by line, build the Appendix 8A schedule, settle residency, claim the reliefs, and read one computation from gross salary to tax payable. Closed beta; access is by invitation.

• Prepares the personal tax computation from the IR8A and Appendix 8A, from gross salary to tax payable
• Settles residency and works out benefits-in-kind and reliefs the way IRAS does, with the S$80,000 relief cap shown, not hidden

The full corporate tax computation for a fund claiming exemption under sections 13D, 13O, 13OA or 13U, on the same engine as the Corporate Income Tax tool. Specified income is exempt and everything else is taxed on the same sheet, so a fund with some taxable income is never moved to another tool. Closed beta; access is by invitation.

• Computes a fund’s tax under sections 13D, 13O, 13OA or 13U in one computation — exempt and taxable income on the same sheet
• Takes a VCC with many sub-funds in one workbook: each sub-fund on its own basis, the exemption and rebate applied once across the VCC

Ask a Singapore tax question, get a point-form answer drawn only from official sources — IRAS pages, the statutes, CPF Board and MOM material — with the citation and its as-at date under every answer.

• Answers a Singapore tax question in point form, from IRAS, the statutes, CPF Board and MOM material only
• Cites the source under every point so you can verify it in seconds, and says so plainly when the official sources don’t cover the question

One case per client, per year, per work type — corporate income tax from the ECI through the Form C-S / C, personal income tax, ACRA annual returns, IRAS queries and ad-hoc engagements — each generating its stages and statutory dates from the client’s year end. Shared across your firm, with every change logged. Closed beta; access is by request from the sign-in page.

• Keeps every engagement in the firm in one place, with each case’s stages and statutory deadlines worked out from the year end
• Shows the team what is due next and what is being chased, with every change logged and client details encrypted

File Form C-S from a finished return — upload the tax-return workbook the CIT calculator exports, paste the filing summary as text, or key the boxes directly. Every field is validated against the IRAS schema for the Year of Assessment before anything is sent. Direct filing with IRAS (Seamless Filing From Software) arrives with APEX onboarding; until then submissions run a clearly-labelled simulation. Closed beta; access is by request from the sign-in page.

• Takes a finished return — the CIT export, pasted text or keyed boxes — and gets it ready to file
• Checks every field against the IRAS rules for the YA before anything is sent, and reports each issue in IRAS’s own wording

Walk one group through its whole Singapore Pillar 2 position — is it in scope, what does the ownership chart look like, what is each entity under the Act, what does each country charge, who files here, and how much domestic and multinational top-up tax is due. It follows the IRAS e-Tax Guide of 7 January 2026 and reproduces both of its worked examples to the cent, draws the org chart, types every entity, and hands back a standalone report you can save or send. A primer, a reading list and the data-point checklist sit in the same tool. Closed beta; access is by request from the sign-in page.

• Takes one group through its whole Singapore Pillar 2 position: scope, every entity under the Act, the effective tax rates and the domestic and multinational top-up tax due
• Works out who files in Singapore, with the registration list and every deadline
• Follows the IRAS e-Tax Guide, matches its worked examples to the cent, and hands back a report you can save or send

Prepare the three quarterly returns that a capital markets services licence holder files with MAS: SFA Form 1, SFA Form 2 and the Quarterly Income and Expenditure statement. Paste the client's monthly Excel, classify each row once, and export the XFDF file that each MAS PDF imports. Access is by request from the sign-in page.

• Turns the client’s monthly Excel into SFA Form 1, SFA Form 2 and the Quarterly Income and Expenditure statement
• Runs every total and cross-check first, so the file imports into the MAS PDFs with no error
• Leaves a working paper behind every field, and remembers each line’s treatment for next quarter

Paste or upload a whole general ledger and review its GST treatment line by line. The Lil’ Extractor reads the ledger off the page, our server-side rules propose a GST code for every line, and the page compares each proposal with the code already booked. Foreign-currency lines convert to Singapore dollars at MAS rates, and the De Minimis test runs for each GST period and the longer period. Beta; access is by request from the sign-in page.

• Reviews the GST treatment of a whole general ledger line by line, flagging where the code booked differs from what the rules propose
• Works out the De Minimis test, the recovery rate and the F5 boxes for each period, with foreign-currency lines at MAS rates
• Exports the reviewed ledger to Excel

Paste the P&L, balance sheet and fixed-asset register, confirm each classification, and get the complete Singapore corporate tax file — Statements A–D, every supporting schedule and the Form C / C-S filing summary — as a formatted Excel working paper. Frozen: v1 is no longer updated — new work and fixes go to CITv2. Kept for cases started here.

• Turns a pasted P&L, balance sheet and fixed-asset register into the complete tax file as a formatted Excel working paper
• Kept so cases started here can be finished; new work belongs in CITv2

The first version of the personal return preparer: the IR8A line by line, the Appendix 8A schedule, residency, reliefs and one computation from gross salary to tax payable. Frozen: v1 is no longer updated — new work and fixes go to the PIT tool above. Kept as a backup for cases started here.

• Prepares the personal tax computation from the IR8A and Appendix 8A, from gross salary to tax payable
• Kept so cases started here can be finished; new work belongs in the PIT tool above

Turn a rough idea into a precise AI brief — Context, Role, Audience, Format, Task, Exclusions, Documentation — and copy the finished prompt straight out. Runs in your browser; no sign-in.

• Turns a rough idea into a structured AI prompt you can copy straight into any assistant
• Gives you ready-made starting points for common jobs, from research to turning receipts and statements into tables
• Teaches the method as you go, with a two-minute lesson one click away

Drop a General Ledger export — Xero Account Transactions, Xero GL Detail, MYOB GL, or most standard Excel formats — and get back a tax-ready workpaper in seconds. Upload and parse are free; a quick email verification unlocks the full analysis.

• Turns a general ledger export into a tax-ready workpaper in seconds, with the income statement and balance sheet rebuilt from the ledger
• Cuts the review down by grouping transactions into patterns — typically 60–70% fewer lines
• Flags the items a tax reviewer must look at, and says what to do next

A keyboard-first calculator mapped to the left side of the keyboard — Q W E for 7 8 9, A S D for 4 5 6, and so on — so your right hand never leaves the mouse.

• Lets you calculate with your left hand while your right hand stays on the mouse
• Keeps a trail of every calculation that you can save, reload and copy into your working paper
• Pulls a clean number grid out of any pasted table for quick checks

Test whether unutilised capital allowances, trade losses and donations survive a change in ownership — the >50% common shareholder test between relevant dates.

• Tells you whether unutilised capital allowances, trade losses and donations can still be carried forward after a change in ownership
• Works out the common shareholders for each pair of relevant dates as you type, and exports the result to PDF or Excel
• Runs in your browser, so the shareholding data stays with you

Drop Singapore bank statement PDFs — DBS Corporate format supported — and extract structured transaction data in seconds. Several statements open as independent tabs, then consolidate into one export.

• Turns bank statement PDFs into a transaction table, with checksums confirming nothing was missed
• Combines several statements into one export, sorted by date
• Runs in your browser, so the statements never leave your machine

Two Monetary Authority of Singapore rate workpapers in one place: Average Exchange Rate averages the published monthly rates over a period of up to thirteen months, and Daily Valuation prices a list of dated transactions at the daily rate for each transaction’s own date.

• Gives you the MAS average rate over any period of up to thirteen months, in 22 currencies
• Values a list of dated transactions at each date’s MAS daily rate, and says which date it used for weekends and holidays
• Copies the result straight into your working paper, or exports it as a CSV

Per-country summaries of Singapore’s comprehensive double taxation agreements — withholding caps, permanent-establishment thresholds and the 183-day employment basis — every fact carrying its treaty article number so it can be checked in seconds. Runs entirely in your browser.

• Tells you the treaty withholding rate on a payment against the domestic rate, with the gross-up and the section 45 filing deadline
• Points out the treaty traps — how the 183 days are counted, construction-PE periods, remittance clauses
• Gives every fact its treaty article number, so you can check it in seconds

Paste renovation invoice lines and get a section 14N workpaper, with every line classified as qualifying, non-qualifying, or plant & machinery that belongs in a capital allowance claim instead.

• Turns renovation invoices into a section 14N workpaper, separating what qualifies from what belongs in the capital allowance claim
• Spreads discounts and GST so the totals tie to the dollar
• Tracks the S$300,000 cap against earlier claims and sets out the deduction schedule

Paste a fund’s investment list and test each line against Part A of the Fifth Schedule — the designated investments for income derived on or after 19 February 2022 under the Singapore fund tax exemptions (sections 13D, 13O, 13U). Every item comes back Designated, Not designated, or Further analysis required.

• Tells you whether each investment in a fund’s list is a designated investment under the Fifth Schedule
• Asks follow-up questions only where they change the answer
• Totals the portfolio by status, with an optional SGD conversion

The free IRAS Partial Exemption Input Tax Recovery Calculator, rebuilt for the browser. Enter the supplies and input tax for each GST period. See the claimable input tax for each period, and the longer period adjustment. It runs in your browser, and nothing is uploaded.

• Works out the claimable input tax for each GST period and the longer period adjustment, as the IRAS calculator does
• Gives you the Box 7 figure and the return it goes in
• Explains each concept where you use it, checked against the IRAS workbook and the e-Tax Guide examples

The single-user version: track each compliance engagement from fee quote to Notice of Assessment. No sign-in, nothing leaves your browser, JSON export for backup.

• Tracks each engagement from fee quote to Notice of Assessment, with every stage dated from the year end
• Tells you what to chase and what is overdue, through escalation and a three-level review
• Produces the quote, scope of work and draft bill from each case’s details, and tracks billing through to payment

Enter plant & machinery — or paste rows straight from a fixed asset register — and get the Year of Assessment claim: initial and annual allowances, balancing adjustments on disposals, and tax written-down values carried forward. Runs entirely in your browser.

• Turns a fixed asset register into the YA capital allowance claim, with balancing adjustments and written-down values carried forward
• Classifies assets as you paste them, and flags the ones that are excluded or belong under s14N
• Lets you choose the claim method, and warns the moment the S$30,000 low-value cap is crossed

Assemble Singapore tax letters and client emails from a curated library of standard paragraphs — tax packages, information request lists, filing reminders, fee quotes. Runs entirely in your browser; Word and PDF downloads unlock with just your email.

• Builds a tax letter or client email from standard paragraphs in minutes
• Fills in the client’s details from any pasted text, such as a BizFile extract or an email signature
• Writes abbreviations in full at first use and short after, so you don’t have to proofread for it

Load two Excel files side by side in a preview that mirrors Excel itself — column letters, row numbers and sheet tabs — and see the differences highlighted. Runs entirely in your browser; nothing is uploaded.

• Shows you exactly what changed between two versions of an Excel file
• Pairs matching rows even when they have moved, so only real changes are flagged
• Compares sheets that don’t share a layout as well

What Preview does on a Mac, in the browser for everyone else — load PDFs, JPEGs or PNGs, arrange their pages as thumbnails, then join, reorder, rotate, delete or extract pages. Download the result as a PDF or as JPEGs. Runs entirely in your browser; nothing is uploaded.

• Combines, reorders, rotates, splits or trims PDFs and images, and gives you back one clean PDF
• Puts scans and photos on A4 pages, with a plain background made transparent for signatures and logos
• Runs in your browser, so the documents never leave your machine

Fill any web form from a list. Keep the facts as Description | Data rows, then put each value into its box with a click or a key.

• Fills web forms from your own list of facts, one box at a time or the whole form at once
• Reads an existing form into a list so you can reuse it
• Builds the list from notes or an email with AI, with names masked before they leave

Turn a pasted table into the shape you need, then copy it back to Excel. It reads spreadsheet pastes, text that lost its columns, and pictures of tables.

• Turns a messy pasted table, or a picture of one, into a clean table to paste back into Excel
• Fixes signs, gaps, blank rows and subtotals in a few keystrokes, with undo
• Works without an API key

Rewrite a block of text with an AI model, in a panel beside your work. It uses your own API key, and it shows which model gets your text.

• Rewrites text beside your work — to read as a person wrote it, or in plain English where each sentence has one meaning
• Masks the names of people and companies before the text leaves, and puts them back in the answer