A six-figure salary is often seen as a milestone that signals financial success. For many fresh graduates landing coveted tech jobs in major cities, earning Rs 1.5 lakh a month seems like the beginning of a comfortable and secure life. But a recent post by a Bengaluru-based chartered accountant offers a reality check. According to her, the difference between earning well and actually building wealth can be surprisingly small once rent, lifestyle costs, family responsibilities and daily expenses begin competing for the same paycheck.Bengaluru-based CA Chandralekha took to social media to share the story of a friend who relocated to the city for her first job in tech. The young professional had all the ingredients of what many would consider a dream start. She held a Computer Science degree, secured a software development role at a top company and earned Rs 1.5 lakh per month.Back home, family and friends believed she had "made it." She had the big salary, the prestigious job title and the opportunity to build a career in one of India's biggest technology hubs. But as Chandralekha explained, the excitement of the first paycheck quickly met the realities of metro-city living.Bengaluru expense breakdown According to her breakdown, a significant portion of the monthly income disappeared into housing costs. Rent for a small apartment near the office came to around Rs 36,000. Then came everyday necessities. Food and groceries typically cost between Rs 13,000 and Rs 15,000 a month. Transportation added another Rs 6,000 to Rs 8,000 through cabs and autos.Screenshot of the post. Lifestyle spending also played a role. Weekend outings, food delivery apps, coffee runs and similar expenses added roughly Rs 10,000 to Rs 12,000 to the monthly bill. However, Chandralekha noted that the biggest surprise was not the obvious spending. She pointed to the expenses "nobody warns you about."Quiet expensesThese included subscription services that quietly renew every month, unexpected medical bills, emergency expenses and money regularly sent back home to support family members. By the end of the month, the financial picture looked very different from what many people imagine when they hear a Rs 1.5 lakh salary.What remains?As Chandralekha put it, what remained was "not the Rs 1 lakh she imagined," and "not even half of it." Instead, the young professional was often left with only Rs 15,000 to Rs 20,000 in savings. The CA stressed that this is not a Bengaluru-specific phenomenon.In her view, similar patterns are playing out across major urban centres including Mumbai, Delhi-NCR, Pune and Hyderabad. High rents consume a large share of income, lifestyle expenses claim another chunk, and a collection of seemingly minor costs gradually erodes what is left.Her broader point was that salary figures often look far more impressive from a distance than they feel in practice. A monthly income exceeding Rs 1 lakh may sound enormous in one's hometown, but in India's largest cities, it frequently represents the beginning of a financial journey rather than the finish line many imagine it to be.