
US Tax Calculator 2026
National Tax Tools
SmartCalcLabs
401k Calculator
401kCalculator.info
Free-Calculator.org
paycheckengine
Free HSA, IRA, and 401(k) calculators for contribution limits, eligibility, and excess-contribution penalties โ verified against IRS Revenue Procedures. No login required, nothing stored; every calculation runs entirely in your browser.

AngularJS (Angular) native directives for Bootstrap.
Which is more popular?
Based on our record, Angular UI Bootstrap seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | verifiedlimits.com | angular-ui.github.io |
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| Company | Startup from Bulgaria ยท 1 - 9 employees ยท 2026 | โ |
| Listed in |
In their own words, as submitted to SaaSHub.


Ledger&Leaf is built for one job: getting IRS contribution limits, eligibility rules, and penalty math exactly right for HSAs, IRAs, and 401(k)s โ nothing else competing for your attention. Twelve calculators, each verified directly against primary IRS sources (Rev. Proc. 2025-19, Rev. Proc....
No description of Angular UI Bootstrap yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of VerifiedLimits yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0โ100% relative to the other.


As answered by people managing VerifiedLimits and Angular UI Bootstrap.
VerifiedLimits's answer
Most calculator sites treat HSA and 401(k) limits as one generic feature buried in a catalog of unrelated tools. Ledger&Leaf does the opposite: twelve calculators, one category โ US tax-advantaged account thresholds โ each verified directly against IRS Revenue Procedures and Notices, not estimated.
It also covers what generic calculators skip entirely:
No login, no account, no data stored โ every number is calculated in your browser and nowhere else.
VerifiedLimits's answer
Getting a contribution limit wrong costs real money โ a 6% excise tax on excess HSA or IRA contributions, a missed employer match, a blown catch-up window.
VerifiedLimits's answer
US taxpayers actively managing an HSA, IRA, or 401(k) who want a precise answer, not a rough estimate โ DIY investors from communities like Bogleheads and r/financialindependence, and people navigating a specific edge case: a job change mid-year, a shift in HDHP coverage, or catch-up eligibility that simpler calculators don't model.
VerifiedLimits's answer
Ledger&Leaf started from a simple observation: the numbers that actually decide whether an HSA or 401(k) contribution is safe โ prorated limits, catch-up thresholds, mid-year coverage changes โ are scattered across dense IRS documents that most calculators simplify past the point of being reliable.
It's built and maintained by a solo founder, one calculator at a time, verifying every figure against the primary source before it ships. The goal isn't to be another all-purpose finance hub โ it's to be the place people go when this specific answer needs to be right.
VerifiedLimits's answer
A client-side single-page application, entirely browser-based:
No backend, no database โ every calculation runs client-side, which is also why no login or account is ever required.
Share your experience with using VerifiedLimits and Angular UI Bootstrap. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking VerifiedLimits since Sep 2026.
I followed the tutorial on the angular bootstrap site :http://angular-ui.github.io/bootstrap/. Source: over 4 years ago
I would like to combine AngularJS and Twitter Bootstrap into a fresh web app. It seems like AngularJS directives have been written for Bootstrap. Source: over 4 years ago
I'd like to make a minor modification to a 3rd party directive (specifically Angular UI Bootstrap). I simply want to add to the scope of the pane directive:. Source: over 4 years ago
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Free 401k calculator with employer match, inflation adjustment, and interactive charts. Project your retirement balance based on 2026 IRS limits.
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Free-Calculator.org offers fast, accurate, and free online calculators for finance, health, math, and more โ everything you need in one simple hub.
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