Knowledge Base
Plain-language, step-by-step guides for you and your bookkeeper. Every guide assumes nothing and gets you to a working result. Stuck at any step? Email Us and we will get you unstuck.
Getting Started
How ThatFiscal Works2 min read
The three steps between raising an invoice in your own system and holding a ZIMRA-accepted fiscal receipt with a QR code on it — and what a virtual fiscal device actually is.
Read the Guide →Which Systems We Supportthe honest matrix
Every system falls into one of three connection paths. The honest matrix: which one yours takes, how long it takes, and what it costs you in effort.
Read the Guide →No Accounting System? Billing Studioadd-on · nothing to install
Every other guide connects ThatFiscal to software you already own. This one is for businesses that own none: raise the invoice in the portal and it fiscalises as you issue it. Drafts, quotes, customer statements, payment reminders, bank reconciliation, stock and profit & loss — and a one-click export of everything if you ever leave.
Read the Guide →Implementation: Step By Stepthe full programme
A step-by-step implementation programme, in the order that actually works: what to have in front of you before you start, how to pick a go-live date, opening balances that reconcile, the dry run, the first month-end close, and the eight mistakes that cost the most.
Read the Guide →Connect Your System
Odoo~5 minutes · native
One Automation Rule, one webhook, no module to install. Covers customer invoices and credit notes, the two Odoo document types ZIMRA cares about.
Read the Guide →Zoho Books~10 minutes · native
Two Workflow Rules — one for invoices, one for credit notes — each firing a webhook. No plugin portal and no extra Zoho user to pay for.
Read the Guide →QuickBooks Online~15 minutes · bridge
QuickBooks Online will not post a raw webhook to an arbitrary URL, so the clean route is a single Zap. Zapier's free tier is enough for most SMEs.
Read the Guide →Excel / CSV~2 minutes · zero install
Fill in a template, upload it, done. Deliberately the opposite of an eleven-step Windows add-in install: there is nothing to install at all.
Read the Guide →Sage / Pastel & Other Exports~5–10 minutes · CSV route
If it can export a CSV, it can fiscalise. That covers Sage Pastel, Palladium, Manager.io, ERPNext, Wave, Loyverse and most POS tills in Zimbabwe.
Read the Guide →Any System — REST API~1 hour · developer
One endpoint fiscalises anything you can write code against — in-house systems, Dynamics 365, SAP Business One, WooCommerce, mobile apps. POST the invoice, get the QR and verification code back.
Read the Guide → Full API Reference →Daily Use
Set Up A POS Tillabout 20 minutes for the first lane, 3 for the rest
A till that runs in the browser on the hardware you already own — scanner, roll printer, cash drawer, scale labels. Every sale is a ZIMRA fiscal receipt and reaches your back office the same second.
Read the Guide →Items & HS Codes5 min once, then automatic
Every line needs an HS code and the right tax, or ZIMRA rejects the receipt. Set the Item Master once and you never type one again — including what RCPT047 and RCPT048 actually mean.
Read the Guide →Issue a Credit Noteevery connector · read this once
A credit note has to point at the receipt it reverses. Every connector handles the sign and the linking for you — this is the one thing you do need to know.
Read the Guide →Who Should Fiscalise
Mandatory if you are VAT-registered. Supported, and often worth doing anyway, if you are not — plus where the VAT registration threshold sits and how we watch it for you.
Read the Guide →Close the Day & Z-Reportdaily · mostly automatic
ZIMRA groups your receipts into fiscal days, and a day left open past its window is a problem. What opens one, what closes it, and how to read the Z-report we file.
Read the Guide →Add Logo & Banking Details2 minutes
Logo, bank, branch, account name, USD and ZWG account numbers — set once, on every fiscalised invoice from then on. Two minutes.
Read the Guide →For Accounting Practices
For Accounting Practicesfor practices
If you keep the books for other people: register once, onboard your clients yourself, and invoice for any of them from a single screen — on their device, under their numbering, in their audit log.
Read the Guide →When Things Go Wrong
Invoice Didn't Fiscalise?the 3 usual suspects: API key · tax mapping · currency
Nearly always one of three things: the API key, the tax mapping, or the currency. Where to look, in order — and why nothing here can fail silently the way it does elsewhere.
Read the Guide →Fix Common ZIMRA Errorstroubleshooting
Every ZIMRA rejection code, its real meaning from the FDMS specification, and the fix. Most are caught by our pre-flight check before anything reaches ZIMRA.
Read the Guide →