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Keeper files the return. Contha is what the return is prepared from.
Keeper is tax filing with deduction finding and human review, priced per return: Standard $199, Premium $399. It computes quarterly payments, itemises Schedule C deductions, handles K-1s and S-corp filing on Premium. It is not a ledger and does not carry your personal net worth. The two are complementary, and this page says where each stops.
| Capability | Keeper | Contha |
|---|---|---|
| Files the return | Yes, reviewed and signed by a tax pro | No. What a filing is prepared from, not the filing |
| Year-round books, personal and business | No, a filing product with deduction scanning | Yes, personal and business on every row, with splits |
| Net worth, budgets, recurring | No | Yes, every account, personal and business |
| Quarterly tax payment calculation | Yes, computed, with a tax pro on the filing | Yes, computed: four payments as a schedule, past due and next |
| Schedule C deductions | Yes, itemised, found in linked accounts | Yes, by line; one per sole proprietorship |
| K-1s, Schedule E | Yes, on Premium | Yes, owner share, basis, reasonable compensation described |
| Corporate filing (1120, S-corp) | Yes, on Premium | No; the owner position and the package, not the filing |
| Tax set-aside against an account | No | Yes, owed so far against a named account |
| Accountant handoff | Its own tax pros | Yes, five files and a read-only link that needs no account |
| Price | $199 or $399 per return | A free week, then Personal $5, Solo $10, Owner $49 a month; two months free on annual billing |
Files the return
- Keeper
- Yes, reviewed and signed by a tax pro
- Contha
- No. What a filing is prepared from, not the filing
Year-round books, personal and business
- Keeper
- No, a filing product with deduction scanning
- Contha
- Yes, personal and business on every row, with splits
Net worth, budgets, recurring
- Keeper
- No
- Contha
- Yes, every account, personal and business
Quarterly tax payment calculation
- Keeper
- Yes, computed, with a tax pro on the filing
- Contha
- Yes, computed: four payments as a schedule, past due and next
Schedule C deductions
- Keeper
- Yes, itemised, found in linked accounts
- Contha
- Yes, by line; one per sole proprietorship
K-1s, Schedule E
- Keeper
- Yes, on Premium
- Contha
- Yes, owner share, basis, reasonable compensation described
Corporate filing (1120, S-corp)
- Keeper
- Yes, on Premium
- Contha
- No; the owner position and the package, not the filing
Tax set-aside against an account
- Keeper
- No
- Contha
- Yes, owed so far against a named account
Accountant handoff
- Keeper
- Its own tax pros
- Contha
- Yes, five files and a read-only link that needs no account
Price
- Keeper
- $199 or $399 per return
- Contha
- A free week, then Personal $5, Solo $10, Owner $49 a month; two months free on annual billing
Checked 9 September 2026, against Keeper’s own published documentation: the Keeper pricing page. If a row is out of date, tell us and it will be corrected on the page, not deleted.
The honest read
Use both. Contha all year, Keeper in April, or your own accountant.
The package Contha hands over is what a preparer asks for. Keeper is one preparer; the read-only link works for any of them.
Also against Monarch Plus, QuickBooks Solopreneur, Found, Copilot Money, YNAB, Wave, Tiller.
Keep Keeper if it is enough. If the tax is the reason you are here, start with Contha.
A free week, no card. Then Personal $5, Solo $10, Owner $49 a month. Read-only connections, cancel any time.