LNbits
LNbits tags a 1.7.0 release candidate with no notes after its WASM extensions release.
Comparison · Finance
GOAT.tax vs SolidInvoice
A side-by-side editorial comparison of GOAT.tax and SolidInvoice — release velocity, themes, recent moves, and the top alternatives to consider.
GOAT.tax vs SolidInvoice: at a glance
What is GOAT.tax?
GOAT.tax calculates the federal R&D credit for whole controlled groups.
GOAT.tax's October 28 release adds Controlled Groups: set up related companies as one group, enter gross receipts, calculate the federal R&D credit at group level and produce group Web and PDF deliverables, with partner portal access. It builds on the Controlled Group data model, multi-company support and October's Form 6765 Section G reporting.
What is SolidInvoice?
SolidInvoice 3.1 brings custom invoice templates and moves migrations off web requests.
SolidInvoice, the self-hosted invoicing app, shipped 3.1.0, 3.1.1 and 3.1.2 together on 29 October. 3.1.0 adds custom invoice templates and invitation expiry; 3.1.2 fixes the in-app upgrade path by running migrations at startup or as a Helm pre-upgrade job. It follows the 3.0 release in June that brought 2FA, OAuth and Meilisearch search.
GOAT.tax vs SolidInvoice: editorial side-by-side
GOAT.tax
5.0FINANCE
GOAT.tax calculates the federal R&D credit for whole controlled groups.
◆ Current state
GOAT.tax's October 28 release adds Controlled Groups: set up related companies as one group, enter gross receipts, calculate the federal R&D credit at group level and produce group Web and PDF deliverables, with partner portal access. It builds on the Controlled Group data model, multi-company support and October's Form 6765 Section G reporting.
◆ Where it's heading
The product is moving from single-company studies to group and partner workflows that larger filers and advisory firms need. Recent releases each add one piece of that structure.
◆ Prediction
Expect state credit calculations at controlled-group level next, since the release covers federal credits only.
SolidInvoice
5.0FINANCE
SolidInvoice 3.1 brings custom invoice templates and moves migrations off web requests.
◆ Current state
SolidInvoice, the self-hosted invoicing app, shipped 3.1.0, 3.1.1 and 3.1.2 together on 29 October. 3.1.0 adds custom invoice templates and invitation expiry; 3.1.2 fixes the in-app upgrade path by running migrations at startup or as a Helm pre-upgrade job. It follows the 3.0 release in June that brought 2FA, OAuth and Meilisearch search.
◆ Where it's heading
After 3.0's identity and platform work, 3.1 turns to customization and operations, with Helm-based deployment now a supported path. Fixes are tagged with detailed commit-level notes, some co-authored with Claude.
◆ Prediction
Expect more 3.1.x fixes around upgrades and deployment, given two fix releases shipped alongside 3.1.0.
Alternatives to GOAT.tax and SolidInvoice
Other Finance products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either GOAT.tax or SolidInvoice.
Firefly III
Firefly III keeps shipping unlabelled develop builds, three of them on Nov 9.
FreeAgent
FreeAgent widens VAT and mobile MTD tools while pitching itself as accounting for every business.
Finanzfluss Copilot
Finanzfluss Copilot adds a Riester vs. pension-depot calculator that feeds its broker comparison.
Purchasely
Purchasely puts its Management API in the terminal and in AI coding agents
Stigg
Stigg moves its entitlements and credit checks inside agent orchestrators and gateways.
See all GOAT.tax alternatives → · See all SolidInvoice alternatives →
Recent activity from GOAT.tax and SolidInvoice
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 11d agoSolidInvoiceSolidInvoice 3.1.0: custom invoice templates, invitation expiry
- 11d agoSolidInvoiceSolidInvoice 3.1.1: post-3.1.0 bug fixes
- 11d agoSolidInvoiceSolidInvoice 3.1.2 fixes the broken in-app upgrade path
- 12d agoGOAT.taxMajor Feature Release: Controlled Groups
- 25d agoGOAT.taxSection G activity breakdown, EIN and NAICS fields for Form 6765
- 1mo agoGOAT.taxGOAT.tax Release Notes for 09/24/2026
- 1mo agoSolidInvoiceInvoice lines now say '1 hour' instead of '1 hours'
- 2mo agoGOAT.taxGOAT.tax Release Notes for 09/08/2026
- 2mo agoGOAT.taxGOAT.tax Release Notes for 08/30/2026
- 2mo agoGOAT.taxGOAT.tax Release Notes for 08/20/2026
- 4mo agoSolidInvoiceRelease 3.0.1
- 4mo agoSolidInvoiceRelease 3.0.0 ⚡
Frequently asked questions
What is the difference between GOAT.tax and SolidInvoice?
They serve adjacent needs but don't currently overlap on shipped themes. GOAT.tax and SolidInvoice are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is GOAT.tax better than SolidInvoice?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. GOAT.tax and SolidInvoice are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Finance products to evaluate alongside.
What are the best alternatives to GOAT.tax?
Top GOAT.tax alternatives in Finance are ranked by recent ship velocity. Browse the "GOAT.tax alternatives" section above for the current picks, or visit /alternatives/goat-tax for the full list with editorial commentary on each.
What are the best alternatives to SolidInvoice?
Top SolidInvoice alternatives in Finance are ranked by recent ship velocity. Browse the "SolidInvoice alternatives" section above for the current picks, or visit /alternatives/solidinvoice for the full list with editorial commentary on each.