About us

We build the accounting the way Danish rules actually look.

Any accounting package can add numbers up. The hard part is everything else: reverse charge on a Google Ads purchase, the nil return in the empty quarter, the OIOUBL format the public sector demands through NemHandel, five years of retention, a small-asset write-off threshold that moves every single year. That is where a Danish company gets caught — and where most systems stop helping.

Sparro is built the other way round: rules first, features after.

Built in Denmark · Every rule written down with its statute · Not open yet

There are three ways to run the books today.

We are not building Sparro because the world lacks an accounting package. We are building it because the three routes actually open to you each cost either time, money or certainty.

  1. The spreadsheet

    It works right up until it doesn't. VAT is worked out by hand, receipts stay in the inbox, and the mistakes are found by your accountant six months after they happened — if they are found at all.

  2. The bookkeeper

    Expensive, and still manual. You are paying a person to type in what the system should have done itself, and you wait until next week every time you need to know whether you can afford something.

  3. The foreign tool

    Good software, wrong country. It doesn't know reverse charge, it doesn't send invoices in the format your municipality requires, the chart of accounts isn't the Danish standard one, and the deadlines in its calendar are not yours.

We don't think any of the three are necessary. That is the whole reason a system is being built.

The rules sit as data. Not buried in the code.

Every rate, threshold and deadline lives in one place in Sparro, with its statutory reference, the date it took effect, and the date we last checked it. When a number changes, it moves in one place — not in nine, where the eighth gets forgotten. Here are five of them, exactly as they stand.

  • Rule

    VAT rate

    Value

    25 %

    Statute

    Momsloven § 33

    What usually goes wrong

    Unchanged since 1992, and Denmark applies no reduced rates. This is the easy one.

  • Rule

    VAT registration threshold

    Value

    50.000 kr.

    Statute

    Momsloven § 48

    What usually goes wrong

    The threshold applies to any 12-month period — not the calendar year. Cross it in August, and August is when you must register.

  • Rule

    Retention of records

    Value

    5 år

    Statute

    Bogføringsloven § 12

    What usually goes wrong

    Five years counted from the end of the financial year the record belongs to. Not from the record's own date.

  • Rule

    Instant write-off of small assets

    Value

    36.000 kr.

    Statute

    Afskrivningsloven § 6

    What usually goes wrong

    The amount is indexed every year. In 2025 it was DKK 34,400. Use last year's figure and you deduct the wrong amount.

  • Rule

    Labour market contribution

    Value

    8 %

    Statute

    Arbejdsmarkedsbidragsloven § 1

    What usually goes wrong

    Calculated on pay after ATP and pension — not on gross salary. Calculate it on gross and you overcharge every month.

All five were checked in August 2026 and carry the paragraph they come from. The write-off threshold is the best argument for writing rules down with a date attached: a system still holding DKK 34,400 from last year gets the answer wrong without ever saying so.

Four things we decided up front.

Not values on a poster. Decisions already made in the code, that you can hold us to when we open.

  • The rule before the feature. If something cannot be posted correctly under Danish law, we don't build it — not even when it would look good in a demo.

  • You approve. Sparro fetches, codes and prepares, but anything in doubt lands with you along with what we know — never as a quiet assumption.

  • Your numbers are yours. You can export the whole ledger in a format others can read. Including the day you want to go somewhere else.

  • One system instead of seven subscriptions. Receipts, invoicing, payroll, VAT, scheduling and contracts belong together, because the numbers already do.

Where we are right now.

Sparro has not opened yet. There are no customer numbers to boast about, no prices to show and no logos to line up at the bottom of the page. The day there are, we'll say so — and until then we won't invent any.

What is built is the core: double-entry bookkeeping against the Danish standard chart of accounts, receipts, invoicing, payroll, VAT, bank connection, scheduling, contracts, fixed assets and financial reports. Plus the import that brings your history across from Dinero, Billy, e-conomic, CSV or SAF-T, so you retype nothing.

The rest we keep building while the waitlist runs. Join it and you'll hear from us when there is something to log in to. Nothing else.

Want in from the start?

Sparro opens to its first companies soon. Join the waitlist and we'll let you know — and we won't write to you about anything else.