How to file a quarter with Tax Flow
From creating a filing to exporting the statement MIRA accepts: the whole quarter, in the order you actually do it.
Before you start
Tax Flow does one job: it reads the supplier invoices you paid GST on and produces the input tax statement MIRA asks for. Everything below assumes you have a stack of invoices for a period you have not filed yet — photographs, PDFs, scans, whatever your suppliers gave you.
Two things get set up once and then never again: a shop, and a filing to put the invoices in.
Filing a quarter, step by step
Create the shop
Shops in the sidebar, then Add shop. Five fields, all of which end up on the statement you export later:
- Shop name and Tax Identification Number — as MIRA holds them, not your trading name if the two differ.
- Tax activity code and Tax classification — from your registration.
- Tax rate — 8% for most businesses, 16% if you are in tourism. Which one you are has its own page if you are not certain.
That rate is what you charge, not what you can claim. A resort buying from a wholesaler at 8% is ordinary, and both rates can sit in the same filing.
Open a filing for the period
Filings, then New filing. Pick Frequency — quarterly or monthly, whichever MIRA has you on — then Period and Year. Q2 2026 means April, May and June.
The filing is what everything else hangs off. It decides which invoices belong together, which dates count as inside the period, and what the export covers.
Drop the invoices in
Open the filing and drag the whole stack onto it. JPG, PNG, WebP and PDF, up to 10 MB each. Keep adding as more turn up — nothing has to arrive in one go.
Each file costs one credit to read. Uploading is free; the credit goes when the reader runs.
Let it read
Off each invoice it takes the supplier name, the supplier’s TIN, the invoice number, the date, the amount before tax and the GST charged. Records appear as they finish, and you can close the tab — the queue keeps going without you.
| Supplier | Date | Before tax | GST |
|---|---|---|---|
| REEF SUPPLIES PVT LTD | 06/04/2026 | 9,450.00 | 756.00 |
| ATOLL HARDWAREAmbiguous date — 4 December or 12 April? Please confirm. | 04/12/2026 | 2,300.00 | 184.00 |
| MAAFANNU TRADERS | — | — | — |
- REEF SUPPLIES PVT LTD06/04/20269,450.00 · 756.00
- ATOLL HARDWARE04/12/20262,300.00 · 184.00Ambiguous date — 4 December or 12 April? Please confirm.
- MAAFANNU TRADERS—— · —
Check the flagged ones
Click a record. The invoice opens on one side and the fields on the other, so you are comparing a figure to the paper it came from rather than trusting it on its own. Correct anything wrong, then tick it to say you have checked it.
Work through the flagged records first — those are the ones the reader was unsure about. The rest are worth a glance, and the tick is how you keep track of which have had one.
Export the statement
Online statementgives you the workbook in the column layout MIRA’s template expects, one line per invoice, ready to upload. What each column means is worth five minutes if you have never filled one in by hand.
Mark it filed
Once the return is in, mark the filing as filed. It stops being the thing you are working on, the records stay searchable, and next quarter starts clean.
What gets flagged, and why
A flag is not an error. It is the reader saying it would rather you looked. These are the ones you will actually see:
- An ambiguous date. 04/12/2026 is 4 December in most of the world and 12 April in some of it. Rather than guess, it asks. This is the most common flag and the fastest to clear.
- A date outside the period. Kept, not discarded — a late invoice is still a claim, and it may belong in a different filing.
- A missing name, TIN, invoice number or date. Sometimes the invoice genuinely does not carry it. More often the photograph cut it off.
- GST that is not the rate the rest of the invoice implies. Usually legitimate — a mixed invoice with some items taxed and some not — but it is the kind of thing worth seeing rather than not.
- A likely duplicate. Same supplier, same date, same amount, different invoice number. It names the record it resembles so you can compare the two.
Records that missed their filing
Sometimes a record ends up with no filing — an invoice uploaded before you made one, or dated outside every period you have opened. Unassigned collects them, and Sort these walks you through putting each one where it belongs.
You can also move a record between filings from the record itself. An invoice that arrived late and belongs in a quarter you have already closed does not need re-uploading.
Credits
One credit reads one invoice. Twenty-five come free with the account, enough to do a small quarter and decide whether this suits how you work. Adding a record by hand costs nothing, and neither does editing, exporting or storing anything.
If you run out mid-batch the remaining invoices wait rather than fail. Top up and they carry on from where they stopped.
Questions
- The reader got something wrong. Can I fix it?
- Open the record and edit any field. What you type wins — the extraction is a first draft, not a verdict.
- I have an invoice but no file to upload.
- Add a record by hand from inside the filing: supplier, TIN, invoice number, date, amount before tax and GST. It costs no credit.
- Can two people work on the same filing?
- Yes. Invoices are claimed one at a time, so two people working through the same filing will not collide or read the same one twice.
- What happens to the invoice images?
- They stay attached to the record. When MIRA asks what a line was, the original is one click from the figure.
- Do I have to use quarters?
- No. A filing can be monthly or quarterly, whichever MIRA has you on.