Flat-fee bookkeeping for the Wave account you already use.
We work inside your existing Wave account — nothing migrates, nothing to relearn, no parallel ledger to keep in sync. Three flat monthly tiers, a clean close every month, and the same reviewer on your account answering the next question.
Three tiersInside your WaveClean close every cycleThree tiers, inside your Wave account, the same reviewer closing every cycle.
Wave pricing
Three flat tiers, picked around your Wave file.
The number is set in writing before any work begins, and it does not creep up because reconciliation took longer than usual. You see the price, you see the included scope, and we answer any pre-signing question in writing.
See the home pricing · no-migration promise, every Wave tier
- Basic
For a sole proprietor on Wave who needs a clean monthly close and not much else.
from $350/month
- Up to 2 linked Wave accounts
- Up to 150 transactions / month in Wave
- AI coding + clean monthly close
- Work happens entirely inside your Wave account
- One short email Q&A per month
- PlusMost picked
For Wave businesses with multiple accounts, payroll, or steady vendor flow.
from $650/month
- Up to 6 linked Wave accounts
- Up to 750 transactions / month
- Bank-feed reconciliation + anomaly flagging
- Monthly review call inside your Wave account
- Vendor & 1099 readiness check
- Comprehensive
For Wave teams that need controller-level oversight without hiring one internally.
from $1,250/month
- Unlimited accounts (within reason)
- Up to 2,500 transactions / month in Wave
- Mid-month check-in + end-of-month close
- Cash-flow forecast refresh + year-end handoff
- Quarterly strategy hour
What we do each month
Four steps, run inside your Wave account.
Every Wave cycle runs the same way. The steps are repeatable; that is what keeps your retainer flat and your close predictable — the same way every month, inside your existing Wave account.
Same day each month
Categorize
Every transaction coded against your Wave chart of accounts
AI proposes a match from your real history; anything ambiguous is held for a manual review — never guessed, never posted silently.
Reconcile
Bank, card, and payment feeds reconciled inside Wave
Cleared transactions matched against the ledger; duplicates, omissions, and suspicious merchants flagged with a plain-English note attached to the entry.
Close
Books are closed on the same day each cycle
Variance report written for the reader who has to defend the numbers — your CPA, a lender, a buyer. One-page summary emailed when it’s done.
Review
Anomaly review runs every cycle, not just at year-end
New payees, sudden swings, and missing recurring items surface as flagged Wave entries with the why — not a 60-page report you never open.
No-migration promise
Your Wave account is the source of truth. We connect in.
Nothing to migrate.
We connect into the Wave account you already run, as a firm user. No data export/import, no parallel ledger to reconcile against, no chart-of-accounts rewrite — your Wave file stays the source of truth.
Nothing to relearn.
Your team keeps the workflow it knows. The monthly review call lives inside Wave, and the reviewer is the same person who closed your last cycle. A new Wave account owner ramps in days, not weeks.
Nothing to second-guess.
If we ever part ways, the account — chart of accounts, transaction history, attachments, saved reports — leaves with you, unaltered. There is no platform lock-in because we never moved you off yours.
Wave FAQ
Three Wave questions, answered plainly.
The questions Wave owners actually ask before they sign — pricing, support inside the account, and what stays in Wave if the engagement ends. If yours isn’t here, write to us; replies come from a person, not a queue.
Ask a Wave questionGet a Wave quote
Send the four answers — get a flat number back.
Tell us what kind of business it is, that you’re running Wave, roughly how many transactions a month move through it, and a desired start month. We come back within one business day with a flat tier and a one-page scope you can sign.
flat-fee-bookkeeping@polsia.app · replied to within one business day