# `io.github.theluckystrike/no-tax-on-overtime-mcp` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/io.github.theluckystrike/no-tax-on-overtime-mcp
- JSON: https://anlyon.dev/api/v1/servers/io.github.theluckystrike/no-tax-on-overtime-mcp
- Version: 1.0.0 (active)
- Publisher: io.github.theluckystrike (GitHub account)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Repository: https://github.com/theluckystrike/no-tax-on-overtime-mcp
- Metadata from the official MCP Registry, synced 2026-10-30T01:17:37.520Z

Title and description, as the publisher wrote them:

```untrusted-server-text
No Tax on Overtime
No tax on overtime, tips and senior deductions for 2025-2028 (OBBBA), with IRS caps and phase-outs.
```

Scanned 2026-10-30T00:18:16.514Z over streamable-http.

**5 tools: 4 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 4 | ask |
| Only reads | read | 1 | allow |

## Exfil surface

No private-data -> untrusted-input -> outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

| Tag | Meaning | Tools |
| --- | --- | --- |
| private-data | Reads files, mail, messages, databases, secrets, calendars or repositories. | none |
| untrusted-input | Brings in text someone else can write: web pages, inbound email, messages, issues and comments. | none |
| outbound | Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL. | none |

## Findings

No check matched anything in these tool definitions.


## Changes things (4)

Creates or changes something that can be changed back. Claude Code: ask.

### `calculate_overtime_deduction`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Calculates the 2025-2028 federal deduction for qualified overtime pay under the One Big Beautiful Bill Act (P.L. 119-21, IRC 225) as IRS Schedule 1-A Part III does: the $12,500 cap ($25,000 joint), then $100 off per full $1,000 of MAGI over $150,000 ($300,000 joint). Only the FLSA half-time premium qualifies, so it converts hourly rate, overtime hours and multiplier (or total overtime pay) to the qualified amount; double time does not double it. Married filing separately gets $0. Figures copied from irs.gov in Oct 2026.
```

### `calculate_senior_deduction`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Calculates the 2025-2028 enhanced deduction for seniors under the One Big Beautiful Bill Act (P.L. 119-21) as IRS Schedule 1-A Part V does: $6,000 per person age 65 or older by Dec 31, each reduced by 6% of MAGI over $75,000 ($150,000 joint). On a joint return the reduction applies to each spouse's $6,000. Married filing separately gets $0. Figures copied from irs.gov in Oct 2026.
```

### `calculate_tips_deduction`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Calculates the 2025-2028 federal deduction for qualified tips under the One Big Beautiful Bill Act (P.L. 119-21, IRC 224) as IRS Schedule 1-A Part II does: a $25,000 cap per return for every filing status, then $100 off per full $1,000 of MAGI over $150,000 ($300,000 joint). Self-employed tips count only up to that business's net income. Married filing separately gets $0. Figures copied from irs.gov in Oct 2026.
```

### `estimate_tax_savings`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Estimates the federal income tax saved in 2025-2028 by the One Big Beautiful Bill Act overtime, tips and senior deductions combined. It applies each deduction's cap and phase-out, then runs taxable income through the IRS bracket tables for that year (Rev. Proc. 2024-40 for 2025, Rev. Proc. 2025-32 for 2026) before and after. 2027-2028 brackets are not published yet, so it uses 2026 and says so. Federal income tax only.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `explain_eligibility`

- The name "explain_eligibility" says "explain": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Explains who can claim the 2025-2028 One Big Beautiful Bill Act deductions for overtime, tips and seniors: years covered, excluded filing status (married filing separately), the valid-SSN rule, FLSA overtime eligibility, and exactly where the amounts are reported (Form W-2 box 12 codes TT and TP, Form 1099-NEC/1099-MISC/1099-K boxes, Schedule 1-A lines), including the 2026 change that only W-2 box 12 code TT amounts count. Taken from IRS FAQs and forms fetched Oct 2026.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `no-tax-on-overtime`:

```json
{
  "permissions": {
    "allow": [
      "mcp__no-tax-on-overtime__explain_eligibility"
    ],
    "ask": [
      "mcp__no-tax-on-overtime__calculate_overtime_deduction",
      "mcp__no-tax-on-overtime__calculate_tips_deduction",
      "mcp__no-tax-on-overtime__calculate_senior_deduction",
      "mcp__no-tax-on-overtime__estimate_tax_savings"
    ],
    "deny": []
  }
}
```