2025 Passive Income Experiments Recap

Hey everyone, Marcel here from Mars Money Lab! As we kick off 2026, here’s my 2025 passive income recap — a year-end summary of my experiments with real results, investments, earnings, and lessons learned.

This year was all about scaling up existing setups, adding new ones late in the game, and tracking real results—no hype, just honest numbers. I’ll give a quick overview of each experiment, including what I invested (contributions, fees, or buys), what I earned (profits, dividends, gains, or cashback), and key takeaways. All figures are in GBP unless noted otherwise, based on my dashboard as of December 2025 (with Bitcoin, Ethereum, and NVIDIA updated January 2026).

I focused on diversification: from crypto cashback and matched betting to stocks, ETFs, and safe government-backed options. Total across all experiments? Solid progress, but remember, these are personal tests—do your own research!

2025 Year-End Portfolio Breakdown

Here’s how my passive income experiments built up into a diversified held portfolio by the end of 2025. The chart below shows current values in both GBP (£) and USD ($) equivalents — switch tabs to compare.

2025 Passive Income Recap Overview

Click each experiment below for full 2025 details:

Tesla Stock

Overview	Long-term DCA into TSLA shares via eToro; £40/week + spare cash, betting on AI, Robotaxi, and energy growth.
Invested in 2025	~£6,200 (52 weeks £40 = £2,080 + significant spare cash injections)
Earned in 2025	$2,973 unrealized gain (~£2,350)
Key Takeaways	Volatile but rewarding—hit all-time highs in Dec. 2025 focus: Robotaxi pilots and budget models drove gains. Hold for 5-10+ years.

Matched Betting (Outplayed)

Overview	Risk-free profits from bookmaker bonuses using tools; upgraded to Pro PLUS in June.
Invested in 2025	~£897 subs/upgrades (£600 Diamond + £297 Pro PLUS); float recycled
Earned in 2025	£2,177 gross (~£1,280 net after costs)
Key Takeaways	Reliable, consistent cash flow throughout the year. Pro PLUS upgrade unlocked better offers — strong side-income option for UK/Ireland residents.

NS&I Premium Bonds

Overview	Government-backed “lottery” savings; monthly contributions, prizes instead of interest. Reduced to £50/month in Jan.
Invested in 2025	£1,600
Earned in 2025	£100 in prizes
Key Takeaways	First win in Sep! Super safe (capital guaranteed), but returns luck-based. Good for UK residents parking cash.

ETF Dividends

Overview	Monthly autoinvest in diversified ETFs (VHYL, VUSA, JEGP) via InvestEngine; started April, reduced to £50/month for sustainability.
Invested in 2025	£900
Earned in 2025	£10 dividends + £62 capital gain
Key Takeaways	Slow but steady compounding; great for low-risk passive growth. Expected yield ~2-3%; all 2025 since start. Switch to UK-only InvestEngine saved fees.

Plutus Cashback

Overview	Crypto debit card rewards from everyday spends; active cashback kicked in July with perks, swaps, and gift cards. Veteran to Grandmaster Metal upgrade boosted yields.
Invested in 2025	~£1,419 (PLU buys + Metal subscription for upgrades)
Earned in 2025	£443.91 realized (cashback + gift cards + swaps); plus 396 locked PLUS (~£3,960 est. value at £10 each, subject to in-app usage limits) and £2,000 worth of air miles (future redeemable value)
Key Takeaways	Solid everyday rewards from spends. Only £443.91 fully extracted so far; remaining value locked in PLUS (usage limits apply) and air miles (redeemable later). PLU holdings depreciated ~90% (from ~$4,500 Jan 2025 to ~$411 now).

Bitcoin

Overview	DCA £10/week into BTC via eToro; focus on long-term appreciation. Started late Dec.
Invested in 2025	£15 (initial $20)
Earned in 2025	~£0 (minimal time for gains; value tied to price)
Key Takeaways	High volatility; no yields. Plan to transfer to hardware wallet later. Worldwide access.

Ethereum

Overview	DCA £10/week into ETH via eToro; staking for yield. Started late Dec.
Invested in 2025	£15 (initial $20)
Earned in 2025	~£0 (early staking ~3% yield, but short period)
Key Takeaways	Higher risk than BTC due to swings; staking adds passive edge. Worldwide.

NVIDIA

Overview	DCA £10/week into NVDA shares via eToro; betting on AI chip dominance. Started late Dec.
Invested in 2025	£15 (initial $20)
Earned in 2025	~£0 (minimal time; value ~$20)
Key Takeaways	Single-stock risk; strong 2025 market but short hold. Worldwide fractional shares.

2025 Key Highlights

2025 Total Profits Summary
(Realized cash/dividends/prizes extracted + key unrealized gains)

• Tesla Stock: ~£2,350 unrealized gain (clear winner — almost $3k profit on paper)
• Matched Betting: £1,280 net (most reliable cash income)
• NS&I Premium Bonds: £100 prizes
• ETF Dividends: £72 total return (£10 dividends + £62 capital gain)
• Plutus Cashback: £443.91 realized/extracted (rest locked: 396 PLUS + £2k air miles future value)
• Bitcoin / Ethereum / NVIDIA: Minimal (started late Dec, small holdings)

Overall realized cash/profits extracted in 2025: ~£1,900 (£1,280 matched betting + £444 Plutus + £100 NS&I + £72 ETFs)
Plus major unrealized: ~£2,350 from Tesla Diversification worked well — steady cash from betting/Plutus, big growth from Tesla, safety from NS&I/ETFs.

Challenges? Volatility was a constant companion — PLU token holdings lost ~90% of their value over the year, and Tesla shares had several notable dips along the way (it wasn’t always in profit during 2025). The time commitment for matched betting also ramped up after the Pro PLUS upgrade, requiring more effort to chase reload offers.

Wins? On the flip side, diversification paid off beautifully: when one area dipped, others held steady or grew. Steady cash flowed from matched betting and Plutus everyday perks. In this 2025 passive income recap, Tesla delivered the biggest growth, and the safe assets (NS&I, ETFs) provided ballast. The late-2025 additions (BTC, ETH, NVIDIA) are now positioned for longer-term horizons.

That’s the 2025 passive income recap in a nutshell. I’m aiming to double it by the end of 2026 — targeting around £23k, but hoping to reach £40k. Let’s see how it goes! 🚀📈

If you’re inspired, start small and track everything. Check my Experiments Dashboard for live updates, or dive into individual posts via the Updates Hub.

Not financial advice, results vary! Thanks for reading my 2025 passive income recap — what’s your highlight? Drop a comment.