# Future Changes Tracker - 2026

**Date:** 2026-01-07  
**Purpose:** Track known 2026 changes and future update requirements

## Known 2026 Changes (Already Applied)

### ✅ January 2026 Changes (Applied)

1. **Solidaritätszuschlag Freigrenze:**

   - Single: €20,350 (was €19,950 in 2025)
   - Married: €40,700 (was €39,900 in 2025)
   - **Status:** ✅ Updated in both calculators

2. **Tax Formula:**

   - Zone 1 boundary: ≤12348 € (was ≤17005 in 2025)
   - Updated coefficients for 2026 formula
   - **Status:** ✅ Updated in Midijob calculator

3. **Pflegeversicherung Rates:**

   - With children: 3.4% total (1.7% employee)
   - Without children: 3.75% total (1.875% employee)
   - **Status:** ✅ Updated in Midijob calculator

4. **Minijob/Midijob Limits:**

   - Minijob Grenze: €603 (was €556 in 2025)
   - Midijob Untergrenze: €603.01 (was €556.01 in 2025)
   - Mindestlohn: €13.90/hour (was €12.82 in 2025)
   - **Status:** ✅ Already updated

5. **BBG Values:**

   - RV BBG: €8,450/month (was €8,050 in 2025)
   - GKV BBG: €5,812.50/month (was €5,512.50 in 2025)
   - **Status:** ✅ Already updated

6. **Tax Allowances:**
   - Grundfreibetrag: €12,348 (was €12,096 in 2025)
   - Kinderfreibetrag: €6,828 (was €6,672 in 2025)
   - Kindergeld: €259/month (was €255 in 2025)
   - **Status:** ✅ Already updated

---

## Potential 2026 Changes (To Monitor)

### Mid-Year Changes (If Any)

**None currently known.** Most German tax and social security changes occur at year start (January 1).

**Monitoring Required:**

- [ ] Check for mid-year tax law changes
- [ ] Monitor social security rate changes
- [ ] Monitor minimum wage adjustments (typically annual)

---

## 2027 Preparation (Future)

### Expected January 2027 Changes

**Note:** These are estimates based on historical patterns. Actual values will be announced in late 2026.

1. **Solidaritätszuschlag Freigrenze:**

   - Typically increases with inflation
   - **Action:** Monitor official announcements in Q4 2026

2. **Tax Allowances:**

   - Grundfreibetrag: Typically increases
   - Kinderfreibetrag: Typically increases
   - Kindergeld: May increase
   - **Action:** Monitor Bundesfinanzministerium announcements

3. **BBG Values:**

   - RV BBG: Typically increases
   - GKV BBG: Typically increases
   - **Action:** Monitor social security announcements

4. **Minijob/Midijob Limits:**

   - Minijob Grenze: Linked to minimum wage
   - Midijob Untergrenze: Linked to minimum wage
   - Mindestlohn: May increase
   - **Action:** Monitor minimum wage announcements

5. **Social Security Rates:**
   - Typically remain stable (unchanged for years)
   - **Action:** Monitor for any announced changes

---

## Monitoring Schedule

### Quarterly Reviews:

**Q1 2026 (January-March):**

- ✅ Verify all January 2026 changes applied
- ✅ Test all calculators
- ✅ Document any issues

**Q2 2026 (April-June):**

- [ ] Check for mid-year changes
- [ ] Review calculator accuracy
- [ ] Update documentation if needed

**Q3 2026 (July-September):**

- [ ] Check for mid-year changes
- [ ] Review calculator accuracy
- [ ] Prepare for 2027 changes research

**Q4 2026 (October-December):**

- [ ] Research 2027 expected changes
- [ ] Prepare update plan for 2027
- [ ] Test calculators with 2027 values (when available)

---

## Update Process

### When Changes Are Announced:

1. **Research Phase:**

   - Verify official sources
   - Document new values
   - Identify affected calculators

2. **Update Phase:**

   - Update constants in code
   - Update formulas if needed
   - Update comments and documentation

3. **Testing Phase:**

   - Run constants verification tests
   - Test calculations with new values
   - Browser test all calculators

4. **Deployment Phase:**
   - Regenerate minified files
   - Deploy updates
   - Verify in production

---

## Sources to Monitor

### Official Government Sources:

1. **Tax Law:**

   - Bundesfinanzministerium (BMF)
   - EStG updates
   - Official tax calculator

2. **Social Security:**

   - Bundesministerium für Arbeit und Soziales (BMAS)
   - Deutsche Rentenversicherung
   - GKV-Spitzenverband

3. **Labor Law:**

   - Mindestlohn-Kommission
   - Minijob-Zentrale
   - Arbeitsagentur

4. **Other:**
   - TVöD-SuE updates (for TVöD calculator)
   - Holiday calendars (for Arbeitstage calculator)

---

## Change Log Template

**Date:** [Date]  
**Change Type:** [Tax/Social Security/Labor Law/Other]  
**Affected Calculators:** [List]  
**Old Value:** [Value]  
**New Value:** [Value]  
**Source:** [Official source]  
**Status:** [Applied/Pending/Research Needed]  
**Notes:** [Additional information]

---

## Current Status

**Last Updated:** 2026-01-07

**All Known 2026 Changes:** ✅ Applied

**Next Review:** Q2 2026 (April 2026)

**2027 Preparation:** Start Q4 2026 (October 2026)

---

## Notes

- Most German tax and social security changes occur on January 1
- Mid-year changes are rare but possible
- Always verify against official sources before updating
- Test thoroughly after any updates
- Document all changes for future reference