If you work for yourself, you probably have “the spreadsheet”. One tab for income, another for expenses, a column of exchange rates you look up by hand and a formula you wrote two years ago and no longer fully trust. It’s free, it’s flexible — and it works right up until the day it doesn’t.
We ran our own sole proprietorship on a spreadsheet for years before we built Dokhid, our Mac app for self-employed finances. Here’s what we learned about where spreadsheets fail, what a good finance app does better and how to switch without losing a single number.
Why spreadsheets feel right at first
Spreadsheets are a great starting point. They cost nothing, you control every cell, and in the first few months there’s very little to track. The trouble is that a sole proprietor’s finances don’t stay simple. More clients, more currencies, more deadlines — and the spreadsheet quietly grows into a system only you understand. And not always.
Where spreadsheets break
- Formulas break silently. Insert a row in the wrong place, and your yearly total stops including March. Nothing turns red; the number is simply wrong.
- Foreign-currency income is a manual chore. If you’re paid in euros or dollars, you have to find the official rate for each payment date and convert it yourself.
- There are no reminders. A spreadsheet doesn’t know a tax payment is due next week. Your calendar might — if you remembered to add it.
- Invoices live somewhere else. You create them in a text editor, copy the numbers by hand and hope they match your records.
- Limits are easy to miss. Many simplified tax regimes have a yearly income cap. A spreadsheet won’t warn you as you get close.
- Versions multiply. “Finances_2026_final_v3” on your laptop, another copy in the cloud, a third one sent to your accountant.
Each of these on its own seems minor. Together they turn bookkeeping into a monthly source of stress: you’re never quite sure of the numbers, you keep putting off the check, and you remember a tax payment the day before it’s due.
In Ukraine, for example, sole proprietors — known as ФОП — deal with all of this at once: a single tax, a social contribution, regular declarations, an income limit for their tax group and foreign-currency income that has to be converted at the National Bank rate. That’s exactly the mix we built Dokhid for.
Spreadsheet vs finance app
| Task | Spreadsheet | Dedicated desktop app |
|---|---|---|
| Recording income | Typed by hand | Imported from bank statements |
| Foreign currency | Rates looked up manually | Converted automatically at the official rate |
| Tax deadlines | Your memory or calendar | Built-in reminders with amounts |
| Income limit | Easy to overlook | A warning well before you reach it |
| Invoices | Separate documents | Created from your client list in a click |
| Reports | Built by hand | Ready for any period |
| Mistakes | Hard to spot | Built-in checks and clear totals |
Why desktop — and not another online service
Online services are great for teams, but for personal and sole-proprietor finances a desktop app has real advantages:
- Privacy. Your income, clients and bank data stay on your computer, not on someone else’s server.
- It works offline. On a train, on a plane or during a power cut, your numbers are still there.
- Speed. Everything opens instantly, with no waiting for pages to load.
- It feels at home on your computer. System notifications, calendar reminders, quick search and simple backups — the way your Mac already works.
- Fair pricing. Desktop apps are often a one-time purchase or a modest subscription, with no per-user fees.
What a month looks like with an app
Here’s the routine our users describe — and the one we follow ourselves:
- At the start of the month, you import the latest bank statement. Payments are sorted by client, and foreign-currency income is already converted.
- One look at the overview shows how much you’ve earned this year and how much to keep aside for taxes, so there are no surprises at the end of the quarter.
- A few days before a payment is due, a reminder arrives with the exact amount. You pay it in your banking app and mark it as done.
- When a project is finished, you create an invoice and a certificate of completed work from the client card and send them as a PDF.
- When it’s time for a declaration, you open a report for the period and find all the totals in one place.
The whole thing takes about fifteen minutes. The rest of the evening is yours.
What to look for in a finance app
Before you choose, check that the app:
- supports your tax regime and the currencies you’re paid in;
- imports bank statements instead of making you type;
- reminds you about payments and declarations in advance;
- creates invoices in the languages your clients need;
- exports clear reports for your accountant;
- keeps your data private and backed up;
- is pleasant enough that you’ll actually open it every month.
How to switch in one afternoon
- Pick a starting date — ideally the beginning of a year or a quarter.
- Import your bank statements from that date.
- Add your clients and check the foreign-currency payments.
- Compare the totals with your spreadsheet — they should match to the cent.
- Set up reminders for upcoming payments and declarations.
- Keep the old spreadsheet as an archive — and stop updating it.
The bottom line
A spreadsheet is a fine place to start and a risky place to stay. Once you have regular clients, several currencies and real deadlines, a dedicated app pays for itself in saved evenings, avoided mistakes and peace of mind.
If you’re a sole proprietor in Ukraine, give Dokhid a try. And if your business needs an app of its own — for finances, operations or customers — we’d love to help. Tell us about your project — hello@daxive.com.